Science

Recent Questions

Science
In an island ecosystem, a species of beetle eats a shrubby plant, a songbird eats the beetle and the hawk eats the songbird. Which of the following would most likely have the smallest population? (a.) Shrubby Plant (b.) Beetle *I chose this* (c.) Songbird (d.) Hawk

Science
Now it is time to apply and share what you have learned so far about conserving natural resources. Pick one of the renewable resource examples from your graphic organizer. Design a digital poster with information on it that describes how to reduce, reuse, or recycle that ...

Science
The sun's light travels ninty-three million miles to reach the Earth. A. CONVECTION B. RADIATION C. CONDUCTION

Science/Biology
What is a characteristic that not all craniates have?

Science
Which is an example of how people use nonrenewable energy resources? A. Eating a banana B. Sailing a boat C. Walking to school D. Driving a car

science
A 60-kg cheetah reaches a speed of 30m\s as it chases its prey. What is the kinetic energy of the cheetah? A 900 J B 1,800 J C 27,000 J D 54,000 J MY answer is B

Science: Please Help
True or false, do animals convert co2 from the atmosphere into carbohydrates?

science
Two bulbs each of resistance 2.0 ohms are connected in parallel with a battery. Calculate the current flowing through any of the bulbs if the voltage of the battery is 0.2V

Science
1. The Hertzsprung-Russell diagram below shows how the brightness, surface temperature, and color of stars are related.stars would be * 3 points Captionless Image A Barnard’s Star is less bright than the sun, has a surface temperature below 3,800 K, and is red. * B ...

Marine Science
What evidence suggests that global climate change is causing the oceans to get warmer? Decreased air temperatures Decreased storm strength Increased sea levels Increased surface ice

Science
Which word or phrase best describes the function of the urinary bladder? 1)filter 2)storage tank 3)blender 4)passageway I think #4, can you check for me? Thanks.

science
Directions to the City of Springfield has built a public park around beautiful Cypress Pond. The city has hired you as its lead environmental scientist. Your job is to monitor the impact the new park has on the. Biodiversity of cypress pond. You will need to use information ...

Science help
Animals convert co2 from the atmosphere into carbohydrates. Is this false?

science!!!!!
If the net force acting on an object is 0 N, the forces are a)balanced b)unbalanced c)not present d)a result of friction

science
1.Is the following statement true or false?Solar panels collect energy from the sun that can then power a lamp in a home. A.True B.False 2.Harvesting energy from water,wind,and geothermal vents requries the use of A. aquaculture B.engines C.mines D.turbines 3.which of the ...

science
whats not an insulator. won't show up on google search.

Science
How many ml of .150 M Na2CrO4 will be required to oxidise 40 ml of .05M Na2S2O3

Science
Which energy conversion allows the lamp to light up in your room? plz quick

Science
Which Energy conversion lets you hear music? Plz give true and right answer.

Science
Where dose water come from and how?

Science
Dose Food,Cloth,Rope,Lumber,Paper,, and rubber come from plants?

Science
Which of the following is true about the electric charges on the objects below. [Picture Shows to Balls Being repelled from each other] A. The ball on the right has a positive charge and the ball on the left has a negative charge B. The ball on the left has a positive charge ...

History
What could be some examples of peace in the Gupta Empire? I have found that peace allowed for many achievements in science and math. Could someone explain to me more about peace in the Gupta Empire?

science
How can you tell if a hiker has to hike the steepest elevation? A) The contour lines are evenly spaced. B) The contour lines are spaced farther apart. C) The contour lines are spaced closer together. I really don't know! Please help, God bless you.

BMB/Science
How would you know if free fatty acids neutralized all the NaOH in creating soap?

Science
A soccer star is travelling with a car of a mass of 880kg on a horizontal road at a velocity of 30m/s. He immediately applies the brakes so as to stop 50m away. The resistance to motion on the horizontal road is 295N. Calculate the deceleration of the car and the braking force

Science
which of the following summarizes the function of the respiratory system? 1) transport oxygen to cells and wastes away from ells. 2)to protect the organs in the chest cavity. 3)to move oxygen from the air into the body and carbon dioxide from the body into the air 4) to ...

Science
Both fossil fuels and rocks are natural resources.How do these resources differ in how they are used by people

Science
Which of the following describes the path of blood between the heart and the lungs? 1)heart-capillaries-veins-arteries-heart​ 2)heart-arteries-veins-capillaries-heart​ 3)heart-arteries-capillaries-veins-heart​ 4)heart-veins-capillaries-arteries-heart​ I...

Science
1. One of the ways humans can preserve biodiversity is (blank). A. habitat destruction B. habitat preservation C. habitat fragmentation D. poaching There are other questions (19 others) but I cant type the rest at the moment.

science
Name the parts of the flower

science
Name all type of machine

science
Which of the following shows complex machine. A.truck,sewing machine B.broom, screw C.wheel barrow ,broom D.shovel, broom

science
A body was moving with a velocity 60km/hour. It is brought to rest by applying a force of 200newton.Find the mass of body in5sec

Science Help
Can someone give a short summary of the difference between Mitosis and meiosis? I can't tell the difference.

science
The ionization energies for the removal of the first electrons in Silicon 780,Phosphorous 1060,Sulphur 1005,Chlorine 1225.

Science
Why are molecular models important in the understanding of molecules? (Select all that apply.) A. They can offer a perfect visual image of the compound. B. They provide a visual of arrangement of atoms, bonds, and valence electrons in the compound. C. They can identify the ...

Science
Review the information. In Compound A, Element W has an electronegativity of 2.8, and Element X has an electronegativity of 2.5. In Compound B, Element Y has an electronegativity of 2.0, and Element Z has an electronegativity of 3.8. Which statement correctly identifies the ...

science
I need a reason the land forms canyons and volcanoes are similar thank you

Science
A pelican flying drops a fish from a height of 10.1m. The fish travels 8.5m horizontally before hitting the ground. What was the pelican's speed?

pol science
True or False: "Framing" an issue (by the news media, for example) means giving the issue a particular slant.

Science Help
I am very confused on what I am supposed to do. I have to make a powerpoint about all the steps of mitosis and meiosis in order and explain how they replace old or broken cells. I don't know the steps or if there are four steps or five. Please help!

Science
Which of the following body systems does the immune system rely on to provide the first line of defense against pathogens. A. Integumentary system B. Nervous system C. circulatory system D. endocrine system I think it is C

Science
silicon sodium krypton potassium which element has the LEAST metallic character. A) silicon B) sodium C) krypton D) potassium

Science
Does anyone know the answer to the science quiz Energy Unit Test for lesson 12 unit 3? please help...

Computer Architecture
home / study / engineering / computer science / computer science questions and answers / 4.7 problems in this exercise assume that the logic blocks used to implement a processor’s ... Question: 4.7 Problems in this exercise assume that the logic blocks used to implement a ...

science
which of the following describe radio waves. Along wavelength with high frequency, b long wave length with short frequencies or low wave length with low frequencies

Science
Which of the following best describes the particles in potato chips and lemonade? The particles are able to flow in both. The particles are locked in position in both. The particles are locked in position in lemonade and able to flow in potato chips. The particles are locked ...

Science
Three people hiked to the top of the hill represented by the following topographic map. Each hiker started at the same elevation but at different locations around the hill. Use this map for questions 4 - 6. (All of them are at a elevation of 180 meters and the top is 264 ...

Science
How does dilution of a substance effects the endpoint of tritation? Like if you dilute a 50 mL of .5 M acid to a 100 mL concentrated .5 M acid, what would be the endpoint? Would it be twice the ending since you need more moles or the same, since you are only adding nonreactive...

science
A powerpoint about four landforms

Science
1. what is a single replacement reaction A. A reaction in which two or more substances react to form a single substance*** B. A reaction in which one element takes place the place of another element in a compound. C. A reaction in which a compound breaks down into two or more ...

Physical Science
Hi! Thanks for checking my question out! ____ 1. Methane, CH4, burns in oxygen gas to form water and carbon dioxide. What is the correct balanced chemical equation for this reaction? (1 point) a) CH4 + O --> H2O + CO2 b) CH4 + 4O --> 2H2O + CO2 c) CH4 + O2 --> H2O + ...

science
At room temperature, 20° C, water (H2O) is a liquid and oxygen (O2) is a gas. Based on kinetic molecular theory, which answer best explains the states of the two fluids? aThe particles in the liquid have greater kinetic energy than the particles in the gas. bThe particles in ...

science
When 9.6 grams of NaBr are dissolved in enough water to create a 165-gram solution, what is the solution's concentration, expressed as a percent by mass? 4.8% NaBr 5.5% NaBr 5.8% NaBr 6.2% NaBr

science
1. The breaking down or disintegration of substances such as rocks and minerals by physical, chemical, or biological processes is called- A Erosion B Weathering*** C Climate D Deposition 2. When particles carried by water, ice, or wind are dropped in another location it is ...

SCIENCE
When 9.6 grams of NaBr are dissolved in enough water to create a 165-gram solution, what is the solution's concentration, expressed as a percent by mass? 4.8% NaBr 5.5% NaBr 5.8% NaBr 6.2% NaBr

science
When 9.6 grams of NaBr are dissolved in enough water to create a 165-gram solution, what is the solution's concentration, expressed as a percent by mass? 4.8% NaBr 5.5% NaBr 5.8% NaBr 6.2% NaBr

Science
If a substance is a mineral, how could you identify what type of mineral it is? help me!!

Science
Which of the following functions like a fulcrum in a lever? A:tendons connecting a muscle to a bone at a joint. B:ligaments connecting bones at a joint. C:two muscles working as a pair to move a joint. D: two bones meeting at a joint. I think the answer is B. Thank you.

science
as magma cool,it forms ? rock by the process of ?.

Science
Which of the following statements describes the conservation of a natural resource? A. A timber company only cuts some trees down and replaces them with new trees. B. A solar energy company harvests energy from sunlight. C. A timber company cuts down all of the trees on a ...

English
What does "interactive effect" mean (in science)? I am a bit confused with this phrase, but how I interpreted it is that it involves examining the effects of two independent variables on a dependent variable. For instance, examining the effect of different percent strengths of...

Science
Which statements show how a chemical bond is formed? (Select all that apply.) a. The valance electrons of an atom are emitted from an atom’s orbital. b. The valence electrons of a metal transfer to the valence shell of a nonmetal to stabilize both atoms. c. The valence ...

Environmental Science
Need a tutor that can help me with an online assignment

Science
Kawaii~chan needs help with Science can someone help kawaii~chan 2 Witch term refers to the diffusion of the water through a membrane A Osmosis B Engulifing C active transport D Facilitated

Science
Kawaii~chan needs help with Science can someone help kawaii~chan 1 What happens in the phloem A Water moves up from roots B Food moves down from leaves C Food moves up from roots D Water moves down to roots

Science
a. Draw the structural formula for a hydrogen molecule (H2) and an oxygen molecule (O2). Remember that each line represents an electron pair being shared.

science
the seperation between hydrogen and chlorine atoms in the hydrogen chloride molecule is about 0.13 mm. the distance of center of mass of HCL molecule from hydrogen is

Science
i need a bit of help finding out how to do this problem. just tell me how and ill take it from there. Q.A compound containing carbon, hydrogen, and Oxygen is found to be 40% carbon and 6.7% hydrogen by mass. the molar mass of this compound is between 115 g / mol. determine the...

Discrete Mathematics
Students at Apollo Elementary School receive ribbons at the end of each year at a school-wide awards ceremony. This year 120 students receive gold stars for perfect attendance, 180 receive certificates for participating in the science fair, and 80 students receive blue ribbons...

Science 9
The energy each organism obtains from another organism? Food or is it chemical energy

science
A uniform force of 30N acts on a mass 2.5kg initially at rest for 5seconds then it withdrawn and a retarding force F now acted on the mass in the direction of the motion to reduce its velocity to 12 m/s.( calculate the momentum of mass before the retarding force starts to cut ...

Math
To help raise funding for attending a science competition out of town, John and his three friends sell candies in their neighborhood. The average of each person’s sale is $200. John’s sale is 1/3 of Steve’s sale, Steve’s sale is 1/4 of Paul’s sale, and Charlie's’ ...

Science. Might Be eays for you, i dont know
What is gravity? How does gravity effect weight? How do people take advantage of gravity?

Science
Which type of radiation emits particles of helium nuclei? alpha radiation beta radiation induced radiation gamma radiation I think a or d

Science
What is the raw materials of metamorphic rocks?

science
which of the following children's playground equipment can be used to model and explain the movement of matter in the biosphere? (1 point) Slide Merry Go Round Swing Seesaw

Science
How much sugar can be dissolved in 250g of water is heated to 80°c?

Physical Science
Describe/draw the process and steps of an electron emitting light.

Writing
write an annotated bibliography on Franco, L. M., Bennett, S., & Kanfer, R. (2002). Health sector reform and public sector health worker motivation: a conceptual framework. Social Science & Medicine,54(8), 1255-1266

Science HELP
Although the Amazon Basin receives more than 80 inches of rain per year, South America also has the driest place on Earth, known as A. Death Valley. B. Gobi Desert. C. Atacama Desert. D. the Caribbean.

science
If ozone mixing ratios are 0.24 ppmv and ROG mixing ratios are 1.7 ppmC, what is the best an most effective regulatory method of reducing ozone if only the effects of NOx(g)and ROGs on ozone are considered?

science
Why are the coldest temperatures at the 50 km height from the surface of the Earth, occur generally at tropical tropopause?

Science // Help
How did planetsmals form planets? They broke apart into smaller chunks. They collided and stuck together They cooled and pulled ice together They began to rotate If anyone took the assessment please help x

Science
Rates of soil erosion are ________ than they were before humans appeared? A.) about the same B.) faster * C.) slower

Science
A good business letter should A)Be printed and mailed B)Be professional and polite C)Demand actions from people in power D)Never be sent to people who are not interested in the topic. My answer B

Science Please Help
What are the similarities of the formation, appearance, and location of valleys, canyons, plains, and volcanoes?

Science
To create less waste in the first place is to a. reduce (?) b. reuse (?) c. recycle d. incinerate Hi. So, for this question, i completely understand what it's asking but i can't figure out which one it would be. Incinerate means to burn waste, but that wouldn't mean less waste...

science
how does a grassland follow conservation of mass

Science
Explain how osmosis across the membrane affects the size of the egg.

Physical Science ?
1. Cooking requires continuous addition of energy to the chemical reactions that are taking place. The chemical reactions involved in cooking can be described as _____. 2. Measuring how quickly a reactant disappears is one way to measure the _____ of the reaction. 3. A chunk ...

Science
I need an acrostic poem for the word waves.

Science
What kind of substance does the following, reflects light, warms up in my hand, flattens out if hit with a hammer, conducts electricity? 1)nonmetal 2)metal 3)metalloid I think #3

Science Please Help
What are the similarities and differences of valleys, canyons, plains, and volcanoes?

science
enzymes are important because they A contain water B speeds up chemical reactions C contain genetic material D helps the cell maintain its shape

Science
4: Which of the following is true of an object in a circular motion at a constant speed? A: The net force on the object is zero B: The object is not accelerating as the speed of the object remains the same C:the object is accelerating as the direction of the object is changing...

Science
Which of the following statements best describes the characteristics of a hypothesis,one of the steps of the scientific method? I think it is a scientific inquiry that cannot be tested.

home science-garment construction
describe how to attach a lace on the lower edge of a skirt using an overlaid seam

Science
A metal from group 1 and a nonmemtal from group 17 are A.not likely to bond B. Likely to form a covalent bond C. Likely to form a ionic bond** D. Likely to form a metalloid I think it's c am I right?

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